Technical Coil spring crunch

[s and b]

Thread resurrection I know, but credit where it's due.

I had a spring snap on my Mrs' 54 plate Punto. We changed both springs for safety's sake, but afterwards the left hand one twanged and the spring juddered when turning left.

I saw this post doing a search of FF last week and had a play with the spring compressors at the weekend - sure enough the top plate was round the wrong way (tab pointing in, not out).
With compressors on the spring, and the top mount loosened, was able to spin the top plate round, then release the spring again without removing the arm.
Twanging noise has now gone away

It looks like the top plate is non-concentric, so if its on the wrong way round, the top of the spring fouls against the inner arch.
With it the right way round, the spring sits further out.

So ta muchly Mr Wild

i put this in a thread a few weeks back to get the notch pointing out as i too got the first one i did wrong